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PopNx MCPMCP servers for people who use AI · explained in plain words

Sellasist MCP by usefulapi

by m190version 1.15.2i★ 1 (Stars for the whole repo)iRuns in the cloud
Registry nameio.usefulapi/sellasist

How to install

What it does

Read Sellasist orders, products, stock, customers, invoices, returns; add order notes, set status.

  • Connects Runs in the cloud
  • Account or key No key needed
  • Category Online shops & payments

Install

Pick the AI app you use, then copy the settings.

Passed 4/4 checks · What you ask goes through the maker’s server (sellasist.usefulapi.io) · ✓ Commands checked Nov 13, 2026

First: which AI do you use?

Pick your app and the steps appear below.

Works with Claude · about 2 min

No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it

  1. Open Claude’s Connectors page

    CustomizeConnectors

    CustomizeConnectors1Add2https://…3Add4
  2. Click “Add” → “Custom” → “Web” and fill in these 2 fields

    Copy each value into the field with the same name in Claude, then click Continue

    Name · NameSellasist MCP by usefulapi
    Remote MCP server URL · Addresshttps://sellasist.usefulapi.io/mcp

    Click Continue past the sign-in settings Claude detected · under Authentication choose what the maker says (Sign in now, Sign in when needed or No sign in), then click Add

  3. Turn it on in a chat

    +ConnectorsSellasist MCP by usefulapi

  4. Try it

    Use Sellasist MCP by usefulapi and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using Sellasist MCP by usefulapi or shows a Sellasist MCP by usefulapi tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with ChatGPT, depending on your plan

Full MCP: ChatGPT Business, Enterprise or Edu on the web · Pro: connects with read/fetch permissions, so tools that change data may not work · Plus: not confirmed in OpenAI’s docs; if you see an add-custom-MCP option on the Plugins page you can try these steps · web only

  1. Open ChatGPT’s add-MCP page on the web

    Plugins+Add custom MCP server

    ChatGPTPlugins1+2https://…3Create4
  2. Fill in the name and address

    Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin

    Name · NameSellasist MCP by usefulapi
    Connection · Addresshttps://sellasist.usefulapi.io/mcp
  3. Pick Sellasist MCP by usefulapi in a chat

    Start a new chat and pick Sellasist MCP by usefulapi from your plugins before typing

  4. Try it

    Use Sellasist MCP by usefulapi and tell me what you can do for me, then show me one thing

    ✓ If ChatGPT says it is using Sellasist MCP by usefulapi or shows a Sellasist MCP by usefulapi tool in the answer, you are connected

Menu names checked against OpenAI’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Claude Code · about 2 min

No key, nothing to install

  1. Open Terminal

    Mac: press Command+Space and type Terminal · Windows: open PowerShell

  2. Paste this command and press Enter

    claude mcp add --transport http --scope user sellasist https://sellasist.usefulapi.io/mcp
  3. Type /mcp in Claude Code

    You should see Sellasist MCP by usefulapi listed as connected

  4. Try it

    Use Sellasist MCP by usefulapi and tell me what you can do for me, then show me one thing

    ✓ If Claude Code says it is using Sellasist MCP by usefulapi or shows a Sellasist MCP by usefulapi tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor · about 2 min

No key, nothing to install

  1. Click this button to open Cursor

    Open in Cursor

    Cursor asks you to confirm; click Install

  2. Open the AI chat in Cursor in Agent mode

  3. Try it

    Use Sellasist MCP by usefulapi and tell me what you can do for me, then show me one thing

    ✓ If Cursor says it is using Sellasist MCP by usefulapi or shows a Sellasist MCP by usefulapi tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code · about 2 min

No key, nothing to install

  1. Click this button to open VS Code

    Open in VS Code

    VS Code asks you to confirm; click Install

  2. Open the AI chat in VS Code in Agent mode

  3. Try it

    Use Sellasist MCP by usefulapi and tell me what you can do for me, then show me one thing

    ✓ If VS Code says it is using Sellasist MCP by usefulapi or shows a Sellasist MCP by usefulapi tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

Address for apps that connect over the web

Addresshttps://sellasist.usefulapi.io/mcp

JSON settings are under “For developers” below

Stuck? Ask people who use Sellasist MCP by usefulapi💬 Discussion →
For developers: Terminal commands and JSON settings

Over the web

Claude Code

claude mcp add --transport http --scope user sellasist https://sellasist.usefulapi.io/mcp

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "sellasist": {
      "url": "https://sellasist.usefulapi.io/mcp"
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "sellasist": {
      "type": "http",
      "url": "https://sellasist.usefulapi.io/mcp"
    }
  }
}

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

GitHub starsi
1 (Stars for the whole repo)
This repo holds several MCP listings; its stars count once in rankings
Downloads per weeki
Not on npm/PyPI
Verified domain
✓ usefulapi.io
Connection
Runs in the cloud
Transport
streamable-http
Latest versioni
1.15.2
Published to registryi
Nov 14, 2026
Code last changedi
Nov 14, 2026
Maker
m190
Registry status
Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast

All apps, with pros and cons →

Related guides

What it can do

Tool names and descriptions exactly as the server reported them on Nov 14, 2026. The maker wrote them, not us; we show them as plain text.

  • sellasist_list_orders

    List orders, newest first, with status, buyer billing address, payment, total, source (Allegro, eBay, Amazon, shop...) and comment. Filter by status, email, name, external id, payment, source or date. Use sellasist_get_order for line items and shipments. GET /orders.

  • sellasist_get_order

    One order by id: status, buyer and delivery address, payment, shipment method, line items (product ids, EAN, quantities, prices), notes, waybills with tracking numbers, payments and additional fields. GET /orders/{order_id}.

  • sellasist_search_orders

    Find up to 100 orders created in a date range and/or in one status (id, date, status). Read-only: it uses POST only because the criteria go in the body. POST /orders_search.

  • sellasist_list_order_statuses

    The order statuses configured in the account. Use the ids to filter orders or to change a status. GET /statuses.

  • sellasist_list_order_notes

    Notes written on one order (author id, date, text, visibility). GET /notes/{order_id}.

  • sellasist_list_order_logs

    The audit log of order actions (create, edit, status change, delete, merge, invoice and receipt actions) with date and user id. Filter by order ids, action type or date. GET /orders_logs.

  • sellasist_list_waybills

    Waybills (shipping labels) with order id, tracking number, creation and delivery date. Filter by order or date. Label files are not returned inline. GET /ordersshipments.

  • sellasist_list_products

    List products with id, name, EAN, symbol, catalog number, location, price, promo price, stock quantity, reserved quantity and variants. Filter by category, manufacturer, EAN, symbol or catalog number. GET /products.

  • sellasist_get_product

    One product by id: title, category, prices, VAT, stock, sold counts, EAN, symbol, location, weight, qualities, availability, manufacturer and more. GET /products/{product_id}.

  • sellasist_get_stock

    Stock quantity of one product, found by id, EAN, symbol or catalog number (the first one given in that order counts); with none of them, a page of stock levels for all products. GET /products_stock.

  • sellasist_list_bestsellers

    Products ranked by units sold in the last month (sold_last_month), with stock and price. GET /products_bestsellers.

  • sellasist_list_categories

    Product categories. GET /categories.

  • sellasist_get_category

    One category: names per language, parent category and status. GET /categories/{category_id}.

  • sellasist_list_warehouses

    Warehouses (id, title). Needs the warehouse-management feature, otherwise Sellasist answers HTTP 406. GET /storages.

  • sellasist_list_customers

    Registered customers (the account's buyers). GET /users.

  • sellasist_get_customer

    One customer: email, registration date, billing and delivery address. GET /users/{user_id}.

  • sellasist_list_invoices

    Invoices (id, number, date). Filter by order, document series or issue date. GET /invoices.

  • sellasist_get_invoice

    One invoice: number, dates, seller, buyer, currency, line items (net, gross, VAT), total and paid amount. GET /invoices/{invoice_id}.

  • sellasist_list_returns

    Return documents (RMZ): number, status, source, linked order, refund value and tracking number. Filter by date, order, status, source or return number. GET /returns.

  • sellasist_get_return

    One return document with status, refund and payment details, tracking, courier and the returned items. GET /returns/{id}.

  • sellasist_list_payment_methods

    Payment methods (id, title) for filtering orders. GET /payments.

  • sellasist_list_shipment_methods

    Delivery methods (id, title) for filtering orders. GET /shipments.

  • sellasist_list_order_sources

    Order sources available in the account (id, name, type: Allegro, shop, marketplace...). GET /sources.

  • sellasist_list_integration_accounts

    Accounts connected in external services (id, login, type). Only these three fields are returned. GET /external_accounts.

  • sellasist_list_alerts

    Active alerts and system messages shown on the Sellasist dashboard (type, severity, title, message). GET /alerts.

  • sellasist_add_order_note

    WRITE: add a new note to an order. Notes are visible to the account's staff; each call adds another note (nothing is overwritten). POST /notes.

  • sellasist_update_order_status

    WRITE: change the status of one order (PUT /orders/{order_id} with only the status). Sellasist may run the status's automations (emails, stock moves). By default the new status is NOT pushed to the marketplace; set send_status_to_external to true to push it. Find status ids with

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 15, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain usefulapi.io (the registry checks domain ownership)

  • ✓ Pass

    Still maintained

    Code last changed yesterday

  • – Not applicable

    Has a licence

    Not applicable: a cloud server run by the owner of usefulapi.io; you don't run code from the repo

  • ✓ Pass

    Endpoint responds

    Responded in 21 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 27 tool descriptions and found no hidden instructions to the AI

What we check → · JSON

Makers: ask for a re-check or report wrong info

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

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Posts here are written by users, not the PopNx team.

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User reviews

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Compared with others in Online shops & paymentsi

  • More stars than 0% of the other 2807 servers in this category
  • Published to the registry more recently than 95% of the other 2807 servers in this category
  • Basic checks equal to or better than 100% of the other 2807 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Sellasist MCP by usefulapi safe?

It passed 4 of 4 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed yesterday, and the latest version (1.15.2) reached the registry yesterday.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT on the web (full MCP on Business and above; Pro read-only).

What can I use instead?

In the same category: Stripe MCP, flightclaw, Trade It, Vaaya, Marketplace Ad Pros: Amazon Ads & Seller Central

Similar alternatives

Same category, other makers, commands already checked. Official ones first, then by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Stripe MCP

Stripe’s official server lets AI view and manage customers, products, payments and invoices. Connect to Stripe’s cloud and sign in with OAuth.

by stripeWidely used★ 2.1KUpdated 13 months ago

Runs in the cloud✓ service owner · stripe.com

flightclaw

Search ~300 airlines and book flights with a checkout link. OAuth sign-in by email code.

by flightclawGrowing★ 85Updated 2 months ago

Runs in the cloud✓ service owner · flightclaw.com

Trade It

Connect brokerage accounts to AI assistants: holdings, orders, asset lookup, and approved trading.

by trade-it-incGrowing★ 62Updated 30 days ago

Runs in the cloud✓ service owner · tradeit.app

Vaaya

Paid APIs and tokenized shares for agents. Prepaid funding, including authorized Instinct checkout.

by vaaya-aiEarly↓ 127/wk★ 44Updated 2 months ago

Computer or cloud✓ service owner · vaaya.ai

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Sellasist MCP by usefulapi

Live endpoint: https://sellasist.usefulapi.io/mcp

Connect

  • Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://sellasist.usefulapi.io/mcp.
  • Claude Code: claude mcp add --transport http sellasist https://sellasist.usefulapi.io/mcp, then run /mcp to log in.
  • VS Code: Add to VS Code.
  • Cursor and other clients: add the URL as a remote MCP server:
{

"mcpServers": { "sellasist": { "url": "https://sellasist.usefulapi.io/mcp" } } }

Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your Sellasist credentials.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/sellasist/

On first connect you will enter your Sellasist address and a Sellasist API key. They are validated, stored per-user, and scoped to you. No keys in config files.

Tools

ToolTypeWhat it does
sellasist_list_ordersreadList orders
sellasist_get_orderreadGet order
sellasist_search_ordersreadSearch orders by creation date and status
sellasist_list_order_statusesreadList order statuses
sellasist_list_order_notesreadList order notes
sellasist_list_order_logsreadList order change log
sellasist_list_waybillsreadList waybills (shipping labels)
sellasist_list_productsreadList products
sellasist_get_productreadGet product
sellasist_get_stockreadGet stock levels
sellasist_list_bestsellersreadList bestselling products
sellasist_list_categoriesreadList categories
sellasist_get_categoryreadGet category
sellasist_list_warehousesreadList warehouses
sellasist_list_customersreadList customers
sellasist_get_customerreadGet customer
sellasist_list_invoicesreadList invoices
sellasist_get_invoicereadGet invoice
sellasist_list_returnsreadList returns
sellasist_get_returnreadGet return
sellasist_list_payment_methodsreadList payment methods
sellasist_list_shipment_methodsreadList delivery methods
sellasist_list_order_sourcesreadList order sources
sellasist_list_integration_accountsreadList connected marketplace accounts
sellasist_list_alertsreadList system alerts
sellasist_add_order_notewriteAdd order note
sellasist_update_order_statuswriteChange order status
sellasist_usage_statusmetaUsage status (free-tier meter)
sellasist_request_featuremetaRequest a missing feature
sellasist_upgrademetaUpgrade to Pro or Pro+
sellasist_cancel_subscriptionmetaCancel the Pro subscription

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.

Pricing

PlanPriceLimit
Free$050 tool calls / month
Pro (per account)$9/mo or $90/yr (2 months free)Unlimited*

\*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to support@usefulapi.io.

Pro covers this server only. Subscribe with sellasist_upgrade (it returns a Stripe Checkout link). Cancel any time with sellasist_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running sellasist_upgrade before then undoes the cancel. Or write to support@usefulapi.io.

License

MIT